US3958519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature furnace construction and hangers therefor
Assignee: Merkle and Associates Inc
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Filing: 1975-02-18
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Granted: 1976-05-25
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Expires: 1995-02-18
Abstract
Abstract A high temperature refractory structure having refractory brick lining including a support frame, a plurality of spaced hanger beams inwardly from the support frame and having opposed flanges, a plurality of spaced hanger beam clips engaging one of the hanger beam flanges for attachment to a support frame, a plurality of refractory hangers engaging the other of the hanger beam flanges, and a plurality of refractory bricks supported by the refractory hangers, the refractory hangers engaging hanger flanges of refractory bricks thereby supporting the refractory brick lining, the refractory brick hanger flanges being at approximately right angles to the hanger beam flanges. Also disclosed is a sheet metal beam clip of substantially U-shape for fastening one beam at right angles to another. Also disclosed is a sheet metal refractory hanger of two interlocked substantially U-shapes having their axis at about right angles to each other, one of the U-shapes engaging a beam flange and the other U-shape engaging hanger flanges of a refractory brick.
Inventors
- 👤 Frank P. Merkle, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:04
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14; F27D1/141; F27D1/142; E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B1/2403; E04B2001/2424; E04B2001/2448; E04B2001/2457
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
123 words
High temperature refractory structure having refractory brick lining including a support frame; a plurality of space hanger beams inwardly from said support frame and having opposed flanges; a plurality of spaced structural plate hanger beam clips engaging one of said hanger beam flanges for attachment to said support frame; a plurality of structural plate refractory hangers having two interlocked opposing U-shaped portions, one of the U-shaped portions engaging the other of said hanger beam flanges; and a plurality of refractory brick supported by said refractory hangers; the other of the U-shaped portions of said refractory hangers engaging hanger flanges of refractory bricks thereby supporting said refractory brick lining, said refractory brick hanger flanges being at approximately right angles to said hanger beam flanges.
Claim 2
Dependent Claim
123 words
High temperature refractory structure having refractory brick lining including a support frame; a plurality of space hanger beams inwardly from said support frame and having opposed flanges; a plurality of spaced structural plate hanger beam clips engaging one of said hanger beam flanges for attachment to said support frame; a plurality of structural plate refractory hangers having two interlocked opposing U-shaped portions, one of the U-shaped portions engaging the other of said hanger beam flanges; and a plurality of refractory brick supported by said refractory hangers; the other of the U-shaped portions of said refractory hangers engaging hanger flanges of refractory bricks thereby supporting said refractory brick lining, said refractory brick hanger flanges being at approximately right angles to said hanger beam flanges.
Claim 3
Dependent Claim
127 words
The structure of claim 1 wherein said hanger beam clip comprises a substantially U-shape having opposing flanges extending inwardly from the end of each leg of said U-shape for engagement with one flange of said hanger beam, a lip extending from the side joining said legs and engaging a flange of said support frame, and a set screw extending through said side of the beam clip joining said legs which when tightened through a nut adjacent the inside of said side joining the legs of said U-shape urges the end of said screw against one side of the flange of said hanger beam and said inwardly extending flanges against the other side of said hanger beam flange holding said beam clip firmly engaged to said hanger beam.
Claim 4
Dependent Claim
20 words
The structure of claim 2 wherein said beam clip is sheet metal of about 9 to about 13 gauge metal.
Claim 5
Dependent Claim
92 words
The structure of claim 1 wherein said refractory hanger comprises two interlocked U-shapes having their axis at about right angles to each other, one of said U-shapes having opposing flanges extending inwardly from the end of each leg engaging a flange of said hanger beam and the side connecting the other end of said legs engaging at about a right angle the corresponding side of the second U-shape, the second of said U-shapes having opposing flanges extending inwardly from the end of each leg engaging said hanger flanges of the refractory brick.
Claim 6
Dependent Claim
19 words
The structure of claim 4 wherein said refractory hanger is sheet metal of about 9 to about 13 gauge.
Claim 7
Dependent Claim
31 words
The structure of claim 5 wherein said U-shape engaging a flange of said hanger beam is mild carbon steel and said U-shape engaging said refractory brick hanger flanges is stainless steel.
Claim 8
Dependent Claim
85 words
An improved sheet metal refractory hanger comprising two interlocked U-shapes having their axis at about right angles to each other, one of said U-shapes having opposing flanges extending inwardly from the end of each leg for engaging a beam flange and the side connecting the other end of said legs engaging at about a right angle the corresponding side of the second U-shape, the second U-shape having opposing flanges extending inwardly from the end of each leg for engaging hanger flanges of a refractory brick.
Claim 9
Dependent Claim
85 words
An improved sheet metal refractory hanger comprising two interlocked U-shapes having their axis at about right angles to each other, one of said U-shapes having opposing flanges extending inwardly from the end of each leg for engaging a beam flange and the side connecting the other end of said legs engaging at about a right angle the corresponding side of the second U-shape, the second U-shape having opposing flanges extending inwardly from the end of each leg for engaging hanger flanges of a refractory brick.
Claim 10
Dependent Claim
16 words
The hanger of claim 7 wherein said sheet metal is about 9 to about 13 gauge.
Claim 11
Dependent Claim
123 words
An improved sheet metal beam clip comprising a substantially U-shape having opposing flanges extending inwardly from the end of each leg of said U-shape for engagement with a flange of a first beam, a lip extending from the side joining said legs and engaging a flange of a second beam, and a set screw extending through said side of the beam clip joining said legs which when tightened through a nut adjacent the inside of said side joining the legs of said U-shape urges the end of said screw against one side of the flange of said first beam and said inwardly extending flanges against the other side of said first beam flange holding said beam clip firmly engaged to said first beam.
Claim 12
Dependent Claim
123 words
An improved sheet metal beam clip comprising a substantially U-shape having opposing flanges extending inwardly from the end of each leg of said U-shape for engagement with a flange of a first beam, a lip extending from the side joining said legs and engaging a flange of a second beam, and a set screw extending through said side of the beam clip joining said legs which when tightened through a nut adjacent the inside of said side joining the legs of said U-shape urges the end of said screw against one side of the flange of said first beam and said inwardly extending flanges against the other side of said first beam flange holding said beam clip firmly engaged to said first beam.
Claim 13
Dependent Claim
18 words
The beam clip of claim 9 wherein said sheet metal is about 9 to about 13 gauge metal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |